片语
bursting hand-hole手孔爆裂
hand hole-forming pile人工挖孔桩
hand-dug trial hole手掘试孔
hand-hole crew水手
hand-dug hole-filling pile人工挖孔桩
Telecommunications Hand-Hole电信手孔
pile foundation by hand-operated hole人工挖孔桩基础
hand-dig hole dewatering人工挖孔降水
Hand-hole Device of Boiler锅炉手孔装置